[INFO] cloning repository https://github.com/ryo0/monkey-in-rust
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[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryo0%2Fmonkey-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 866a1360942b6a75be385d515f62bd60d188a24d
[INFO] checking ryo0/monkey-in-rust against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryo0%2Fmonkey-in-rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/ryo0/monkey-in-rust on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryo0/monkey-in-rust
[INFO] finished tweaking git repo https://github.com/ryo0/monkey-in-rust
[INFO] tweaked toml for git repo https://github.com/ryo0/monkey-in-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ryo0/monkey-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f8f5c4edbc9d6dd1804d8846bbc0761e32a65315c2cc9ac962de65aeacf975a5
[INFO] running `Command { std: "docker" "start" "-a" "f8f5c4edbc9d6dd1804d8846bbc0761e32a65315c2cc9ac962de65aeacf975a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8f5c4edbc9d6dd1804d8846bbc0761e32a65315c2cc9ac962de65aeacf975a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8f5c4edbc9d6dd1804d8846bbc0761e32a65315c2cc9ac962de65aeacf975a5", kill_on_drop: false }`
[INFO] [stdout] f8f5c4edbc9d6dd1804d8846bbc0761e32a65315c2cc9ac962de65aeacf975a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 820ba47a33c62c46eb0a40af4c44ba3d529f3f08fe72a25973605d4659321dc1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "820ba47a33c62c46eb0a40af4c44ba3d529f3f08fe72a25973605d4659321dc1", kill_on_drop: false }`
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::start_to_tokenize`
[INFO] [stdout]  --> src/eval.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::start_to_tokenize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Precedence`, `parse_exp`, `start_to_parse`
[INFO] [stdout]  --> src/eval.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::parser::{parse_exp, start_to_parse, Exp, Operator, Precedence, Program, Statement};
[INFO] [stdout]   |                     ^^^^^^^^^  ^^^^^^^^^^^^^^                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `start_to_tokenize`
[INFO] [stdout]  --> src/parser.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::{start_to_tokenize, Token};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             _ => {
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/eval.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 (left, right) => Value::Bool { val: left == right },
[INFO] [stdout]     |                 ------------- matches any value
[INFO] [stdout] 109 |                 _ => {
[INFO] [stdout]     |                 ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/eval.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         _ => {
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/eval.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     Int {
[INFO] [stdout] 16 | |         val: i32,
[INFO] [stdout] 17 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]   --> src/eval.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     Bool {
[INFO] [stdout] 19 | |         val: bool,
[INFO] [stdout] 20 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Null`
[INFO] [stdout]   --> src/eval.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Null,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Func`
[INFO] [stdout]   --> src/eval.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     Func {
[INFO] [stdout] 23 | |         params: Vec<Exp>,
[INFO] [stdout] 24 | |         body: Vec<Statement>,
[INFO] [stdout] 25 | |         env: Rc<RefCell<Env>>,
[INFO] [stdout] 26 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringVal`
[INFO] [stdout]   --> src/eval.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | /     StringVal {
[INFO] [stdout] 28 | |         val: String,
[INFO] [stdout] 29 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Array`
[INFO] [stdout]   --> src/eval.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     Array {
[INFO] [stdout] 31 | |         array: Vec<Value>,
[INFO] [stdout] 32 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_value`
[INFO] [stdout]   --> src/eval.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn get_value(env: &Env, key: String) -> Value {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval_program`
[INFO] [stdout]   --> src/eval.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn eval_program(program: Program, env: &mut Rc<RefCell<Env>>) -> Value {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval_let`
[INFO] [stdout]   --> src/eval.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn eval_let(letStmt: Statement, env: &mut Rc<RefCell<Env>>) -> Value {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval_exp`
[INFO] [stdout]   --> src/eval.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn eval_exp(exp: Exp, env: &mut Rc<RefCell<Env>>) -> Value {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Plus`
[INFO] [stdout]  --> src/parser.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Plus,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Minus`
[INFO] [stdout]  --> src/parser.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Minus,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Asterisk`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Asterisk,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Slash`
[INFO] [stdout]  --> src/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Slash,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bang`
[INFO] [stdout]  --> src/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Bang,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equal`
[INFO] [stdout]   --> src/parser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Equal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotEqual`
[INFO] [stdout]   --> src/parser.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     NotEqual,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Less`
[INFO] [stdout]   --> src/parser.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Less,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Greater`
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Greater,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Paren`
[INFO] [stdout]   --> src/parser.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Paren,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Indexing`
[INFO] [stdout]   --> src/parser.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Indexing,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Program`
[INFO] [stdout]   --> src/parser.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type Program = Vec<Statement>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/parser.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Int(i32),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Var`
[INFO] [stdout]   --> src/parser.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Var(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]   --> src/parser.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Bool(bool),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringVal`
[INFO] [stdout]   --> src/parser.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     StringVal(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Null`
[INFO] [stdout]   --> src/parser.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Null,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/parser.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     If {
[INFO] [stdout] 31 | |         cond_exp: Box<Exp>,
[INFO] [stdout] 32 | |         then_stmts: Vec<Statement>,
[INFO] [stdout] 33 | |         else_stmts: Vec<Statement>,
[INFO] [stdout] 34 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrefixExp`
[INFO] [stdout]   --> src/parser.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     PrefixExp {
[INFO] [stdout] 36 | |         op: Operator,
[INFO] [stdout] 37 | |         right: Box<Exp>,
[INFO] [stdout] 38 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InfixExp`
[INFO] [stdout]   --> src/parser.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     InfixExp {
[INFO] [stdout] 40 | |         left: Box<Exp>,
[INFO] [stdout] 41 | |         op: Operator,
[INFO] [stdout] 42 | |         right: Box<Exp>,
[INFO] [stdout] 43 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Func`
[INFO] [stdout]   --> src/parser.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     Func {
[INFO] [stdout] 45 | |         params: Parameters,
[INFO] [stdout] 46 | |         body: Vec<Statement>,
[INFO] [stdout] 47 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FuncCall`
[INFO] [stdout]   --> src/parser.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | /     FuncCall {
[INFO] [stdout] 49 | |         func_name: Box<Exp>,
[INFO] [stdout] 50 | |         args: Arguments,
[INFO] [stdout] 51 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Array`
[INFO] [stdout]   --> src/parser.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     Array {
[INFO] [stdout] 53 | |         vec: Vec<Exp>,
[INFO] [stdout] 54 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IndexExp`
[INFO] [stdout]   --> src/parser.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     IndexExp {
[INFO] [stdout] 56 | |         left: Box<Exp>,
[INFO] [stdout] 57 | |         index: Box<Exp>,
[INFO] [stdout] 58 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Let`
[INFO] [stdout]   --> src/parser.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Let { id: Exp, value: Exp },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExpStmt`
[INFO] [stdout]   --> src/parser.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     ExpStmt { exp: Exp },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]   --> src/parser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Return { exp: Exp },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LOWEST`
[INFO] [stdout]   --> src/parser.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     LOWEST,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EQUALS`
[INFO] [stdout]   --> src/parser.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     EQUALS,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESSGREATER`
[INFO] [stdout]   --> src/parser.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     LESSGREATER,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SUM`
[INFO] [stdout]   --> src/parser.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     SUM,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRODUCT`
[INFO] [stdout]   --> src/parser.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     PRODUCT,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PREFIX`
[INFO] [stdout]   --> src/parser.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     PREFIX,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CALL`
[INFO] [stdout]   --> src/parser.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     CALL,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LBRACKET`
[INFO] [stdout]   --> src/parser.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     LBRACKET,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `start_to_parse`
[INFO] [stdout]   --> src/parser.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn start_to_parse(tokens: &[Token]) -> Program {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_program`
[INFO] [stdout]   --> src/parser.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn parse_program(tokens: &[Token], acm: &mut Vec<Statement>) -> Vec<Statement> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_exp`
[INFO] [stdout]   --> src/parser.rs:95:8
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub fn parse_exp(tokens: &[Token], p: Precedence) -> (Exp, &[Token]) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_exp_core`
[INFO] [stdout]    --> src/parser.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn parse_exp_core(tokens: &[Token], left: Exp, p: Precedence) -> (Exp, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_grouped_exp`
[INFO] [stdout]    --> src/parser.rs:151:4
[INFO] [stdout]     |
[INFO] [stdout] 151 | fn parse_grouped_exp(tokens: &[Token]) -> (Exp, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `convert_op_token`
[INFO] [stdout]    --> src/parser.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn convert_op_token(token: &Token) -> Operator {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_prefix_exp`
[INFO] [stdout]    --> src/parser.rs:184:4
[INFO] [stdout]     |
[INFO] [stdout] 184 | fn parse_prefix_exp(tokens: &[Token]) -> (Exp, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_precedence`
[INFO] [stdout]    --> src/parser.rs:206:4
[INFO] [stdout]     |
[INFO] [stdout] 206 | fn get_precedence(token: &Token) -> Precedence {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_infix_exp`
[INFO] [stdout]    --> src/parser.rs:218:4
[INFO] [stdout]     |
[INFO] [stdout] 218 | fn parse_infix_exp(tokens: &[Token], left: Exp) -> (Exp, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_let`
[INFO] [stdout]    --> src/parser.rs:257:4
[INFO] [stdout]     |
[INFO] [stdout] 257 | fn parse_let(tokens: &[Token]) -> (Statement, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_exp_statement`
[INFO] [stdout]    --> src/parser.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn parse_exp_statement(tokens: &[Token]) -> (Statement, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_statement`
[INFO] [stdout]    --> src/parser.rs:290:4
[INFO] [stdout]     |
[INFO] [stdout] 290 | fn parse_statement(tokens: &[Token]) -> (Statement, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_block_statements`
[INFO] [stdout]    --> src/parser.rs:298:4
[INFO] [stdout]     |
[INFO] [stdout] 298 | fn parse_block_statements(tokens: &[Token], mut acm: Vec<Statement>) -> (Vec<Statement>, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_func`
[INFO] [stdout]    --> src/parser.rs:314:4
[INFO] [stdout]     |
[INFO] [stdout] 314 | fn parse_func(tokens: &[Token]) -> (Exp, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_func_call`
[INFO] [stdout]    --> src/parser.rs:338:4
[INFO] [stdout]     |
[INFO] [stdout] 338 | fn parse_func_call(tokens: &[Token]) -> (Exp, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_params`
[INFO] [stdout]    --> src/parser.rs:358:4
[INFO] [stdout]     |
[INFO] [stdout] 358 | fn parse_params(tokens: &[Token], mut acm: Vec<Exp>) -> (Parameters, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_array`
[INFO] [stdout]    --> src/parser.rs:379:4
[INFO] [stdout]     |
[INFO] [stdout] 379 | fn parse_array(tokens: &[Token], mut acm: Vec<Exp>) -> (Exp, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_args`
[INFO] [stdout]    --> src/parser.rs:399:4
[INFO] [stdout]     |
[INFO] [stdout] 399 | fn parse_args(tokens: &[Token], mut acm: Vec<Exp>) -> (Arguments, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_if`
[INFO] [stdout]    --> src/parser.rs:420:4
[INFO] [stdout]     |
[INFO] [stdout] 420 | fn parse_if(tokens: &[Token]) -> (Exp, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_return`
[INFO] [stdout]    --> src/parser.rs:458:4
[INFO] [stdout]     |
[INFO] [stdout] 458 | fn parse_return(tokens: &[Token]) -> (Statement, &[Token]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `letStmt` should have a snake case name
[INFO] [stdout]   --> src/eval.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn eval_let(letStmt: Statement, env: &mut Rc<RefCell<Env>>) -> Value {
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `let_stmt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 72 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             _ => {
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/eval.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 (left, right) => Value::Bool { val: left == right },
[INFO] [stdout]     |                 ------------- matches any value
[INFO] [stdout] 109 |                 _ => {
[INFO] [stdout]     |                 ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/eval.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         _ => {
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Less`
[INFO] [stdout]   --> src/parser.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Less,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Greater`
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Greater,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `letStmt` should have a snake case name
[INFO] [stdout]   --> src/eval.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn eval_let(letStmt: Statement, env: &mut Rc<RefCell<Env>>) -> Value {
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `let_stmt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "820ba47a33c62c46eb0a40af4c44ba3d529f3f08fe72a25973605d4659321dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "820ba47a33c62c46eb0a40af4c44ba3d529f3f08fe72a25973605d4659321dc1", kill_on_drop: false }`
[INFO] [stdout] 820ba47a33c62c46eb0a40af4c44ba3d529f3f08fe72a25973605d4659321dc1